public class Main {
    public static void main(String[] args) {

    }
}
class MyThread3 extends Thread{
    MyThread3(String s){
        super(s);
    }
    public void run(){
        System.out.println("uuu");
        try{
            Thread.sleep(1);
        } catch (InterruptedException e) {
        }
        if(){
            yield();
        }
    }
}